Sign based human-machine interaction
US7308112B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | May 12, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2400/852
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Communication is an important issue in man-to-robot interaction. Signs can be used to interact with machines by providing user instructions or commands. Embodiment of the present invention include human detection, human body parts detection, hand shape analysis, trajectory analysis, orientation determination, gesture matching, and the like. Many types of shapes and gestures are recognized in a non-intrusive manner based on computer vision. A number of applications become feasible by this sign-understanding technology, including remote control of home devices, mouse-less (and touch-less) operation of computer consoles, gaming, and man-robot communication to give instructions among others. Active sensing hardware is used to capture a stream of depth images at a video rate, which is consequently analyzed for information extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.